Ankle joint

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Ankle Joint

The Ankle Joint (pronounced: /ˈæŋ.kəl dʒɔɪnt/), also known as the Talocrural Joint, is a synovial hinge joint that connects the distal ends of the tibia and fibula in the lower limb with the proximal end of the talus bone in the foot.

Etymology

The term "ankle" comes from the Old English ancleow, which means "angle". The term "joint" comes from the Latin iunctus, meaning "joined".

Anatomy

The ankle joint is composed of three bones: the Tibia, the Fibula, and the Talus. The tibia and fibula are the two bones of the lower leg, and the talus is the bone that sits above the heel bone (the Calcaneus).

The ankle joint is surrounded by a fibrous joint capsule, lined by a synovial membrane. This membrane produces synovial fluid, which lubricates the joint and allows for smooth movement.

Function

The primary movements of the ankle joint are dorsiflexion and plantarflexion. Dorsiflexion is the movement of raising the foot upwards towards the shin, while plantarflexion is the movement of lowering the foot, pointing the toes away from the body.

Related Terms

See Also

External links

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